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Registro Completo |
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
27/10/1999 |
Data da última atualização: |
27/10/1999 |
Autoria: |
SERRAO, E. A. S.; FALESI, I. C. |
Título: |
Pastagens do tropico umido brasileiro. |
Ano de publicação: |
0 |
Fonte/Imprenta: |
Belem: EMBRAPA-CPATU, [19--]. |
Páginas: |
63p. |
Idioma: |
Português |
Palavras-Chave: |
Browse plants; Tropico umido. |
Thesagro: |
Pastagem; Planta Forrageira. |
Thesaurus Nal: |
humid tropics; pastures. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00484nam a2200193 a 4500 001 1176566 005 1999-10-27 008 bl uuuu 00u1 u #d 100 1 $aSERRAO, E. A. S. 245 $aPastagens do tropico umido brasileiro. 260 $aBelem: EMBRAPA-CPATU, [19--].$c0 300 $a63p. 650 $ahumid tropics 650 $apastures 650 $aPastagem 650 $aPlanta Forrageira 653 $aBrowse plants 653 $aTropico umido 700 1 $aFALESI, I. C.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
04/10/2006 |
Data da última atualização: |
05/09/2017 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
PRIMAVESI, O.; FRIGHETTO, R. T. S.; PEDREIRA, M. S.; LIMA, M. A. de; BERCHIELLI, T. T. |
Afiliação: |
OTO PRIMAVESI, CCPSE; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; M. S. PEDREIRA, UESB/DTRA; MAGDA APARECIDA DE LIMA, CNPMA; T. T. BERCHIELLI, FCAV-Unesp. |
Título: |
Methane emission from grazing dairy cattle in tropical Brasil: mitigation by improving production. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
In: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 349-355. |
Idioma: |
Inglês |
Conteúdo: |
Experiments were carried out on tropical grass pasture, in summer 2002, to find out possible mitigation options to reduce methane emission using different categories of grazing dairy cattle breeds. Methane emission was measured using the SF6 tracer technique. Experimental design was a block distribution in time, along four consecutive weeks, five days a week, at 12-hour intervals, employing four animal categories - lactating and dry cows on pastures with nitrogen fertilization and heifers on pastures with and without fertilization - of pure Holstein and 3/4 breeds (B. taurus x B. indicus): lactating Hostein cows in 1 of 33 resting days rotated grazing fertilized Panicum maximum with 15% crude protein (CP), 64% neutral detergent fiber (NDF) and 54% ?in vitro? organic matter digestibility (IVOMD) plus 1 kg concentrate with 20% CP for each three liter milk surplus above 10 liters; dry cows and heifers of both breeds grazing N-fertilized grass P. maximum, lactating Zebu crosbred on Nfertilized Brachiaria decumbens, and heifers of both breeds grazing unfertilized B. decumbens extensively managed, with 6.5% CP, 72% NDF and 37% IVOMD, similar to the most representative cattle production systems in Brazil. These experiments were carried out in summer (rainy season) with offer of good quality grass forage. Data indicate that methane emission rates of cattle on tropical grass pastures are higher than those on temperate forages, perhaps due to higher fiber content. Data also suggest that improvement of production potential of dairy cattle may reduce methane emission per product unit in Brazilian summer grazing conditions. Concentrate use equal or lower than 40% of dry matter intake did increase methane emission per animal but reduce per unit of production. MenosExperiments were carried out on tropical grass pasture, in summer 2002, to find out possible mitigation options to reduce methane emission using different categories of grazing dairy cattle breeds. Methane emission was measured using the SF6 tracer technique. Experimental design was a block distribution in time, along four consecutive weeks, five days a week, at 12-hour intervals, employing four animal categories - lactating and dry cows on pastures with nitrogen fertilization and heifers on pastures with and without fertilization - of pure Holstein and 3/4 breeds (B. taurus x B. indicus): lactating Hostein cows in 1 of 33 resting days rotated grazing fertilized Panicum maximum with 15% crude protein (CP), 64% neutral detergent fiber (NDF) and 54% ?in vitro? organic matter digestibility (IVOMD) plus 1 kg concentrate with 20% CP for each three liter milk surplus above 10 liters; dry cows and heifers of both breeds grazing N-fertilized grass P. maximum, lactating Zebu crosbred on Nfertilized Brachiaria decumbens, and heifers of both breeds grazing unfertilized B. decumbens extensively managed, with 6.5% CP, 72% NDF and 37% IVOMD, similar to the most representative cattle production systems in Brazil. These experiments were carried out in summer (rainy season) with offer of good quality grass forage. Data indicate that methane emission rates of cattle on tropical grass pastures are higher than those on temperate forages, perhaps due to higher fiber content. Data also suggest th... Mostrar Tudo |
Thesagro: |
Gado; Metano. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163316/1/Primavesi-methane.pdf
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Marc: |
LEADER 02443nam a2200181 a 4500 001 1015074 005 2017-09-05 008 2003 bl uuuu u00u1 u #d 100 1 $aPRIMAVESI, O. 245 $aMethane emission from grazing dairy cattle in tropical Brasil$bmitigation by improving production.$h[electronic resource] 260 $aIn: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 349-355.$c2003 520 $aExperiments were carried out on tropical grass pasture, in summer 2002, to find out possible mitigation options to reduce methane emission using different categories of grazing dairy cattle breeds. Methane emission was measured using the SF6 tracer technique. Experimental design was a block distribution in time, along four consecutive weeks, five days a week, at 12-hour intervals, employing four animal categories - lactating and dry cows on pastures with nitrogen fertilization and heifers on pastures with and without fertilization - of pure Holstein and 3/4 breeds (B. taurus x B. indicus): lactating Hostein cows in 1 of 33 resting days rotated grazing fertilized Panicum maximum with 15% crude protein (CP), 64% neutral detergent fiber (NDF) and 54% ?in vitro? organic matter digestibility (IVOMD) plus 1 kg concentrate with 20% CP for each three liter milk surplus above 10 liters; dry cows and heifers of both breeds grazing N-fertilized grass P. maximum, lactating Zebu crosbred on Nfertilized Brachiaria decumbens, and heifers of both breeds grazing unfertilized B. decumbens extensively managed, with 6.5% CP, 72% NDF and 37% IVOMD, similar to the most representative cattle production systems in Brazil. These experiments were carried out in summer (rainy season) with offer of good quality grass forage. Data indicate that methane emission rates of cattle on tropical grass pastures are higher than those on temperate forages, perhaps due to higher fiber content. Data also suggest that improvement of production potential of dairy cattle may reduce methane emission per product unit in Brazilian summer grazing conditions. Concentrate use equal or lower than 40% of dry matter intake did increase methane emission per animal but reduce per unit of production. 650 $aGado 650 $aMetano 700 1 $aFRIGHETTO, R. T. S. 700 1 $aPEDREIRA, M. S. 700 1 $aLIMA, M. A. de 700 1 $aBERCHIELLI, T. T.
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Embrapa Meio Ambiente (CNPMA) |
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